Microsporogenesis:-

• As the anther develops, each cell of sporogenous tissue undergoes meiotic divisions to form microspore tetrads.
• Each one is a potential pollen (microspore mother cell).
• The formation of microspores from a pollen mother cell (PMC) through meiosis is called microsporogenesis.
• The microspores are arranged in a cluster of four cells (microspore tetrad).
• As the anthers mature and dehydrate, the microspores dissociate from each other and develop into pollen grains.
• Inside each microsporangium thousands of pollen grains are formed that are released with the dehiscence of the anther.